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H-146-SS — RESTRICTOR,FLUID FLOW

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

H-146-SS: RESTRICTOR,FLUID FLOW.

The RESTRICTOR,FLUID FLOW is a the manufacturer industrial component. Key specifications include material: STEEL COMP 303, thread_series: NPT OVERALL, orifice_diameter: 0.146 INCHES NOMINAL IN, thread_provision: THREADED LOCATION NOT OTHERWISE SPECIFIED, part_name_assigned_by_controlling_agency: 1/2 INCH MALE X FEMALE ORIFICE, ADAPTER IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-733-4252, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
H-146-SS
NSN: 4730-01-733-4252
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 59023 — O'KEEFE CONTROLS CO. (USA)
SPECIFICATIONS
materialSTEEL COMP 303
thread_seriesNPT OVERALL
orifice_diameter0.146 INCHES NOMINAL IN
thread_provisionTHREADED LOCATION NOT OTHERWISE SPECIFIED
part_name_assigned_by_controlling_agency1/2 INCH MALE X FEMALE ORIFICE, ADAPTER IN
NSN4730-01-733-4252
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: H-146-SS · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
THREAD PROVISION: THREADED LOCATION NOT OTHERWISE SPECIFIED
•
THREAD SERIES: NPT OVERALL
•
MATERIAL: STEEL COMP 303
•
ORIFICE DIAMETER: 0.146 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
THREAD PROVISIONTHREADED LOCATION NOT OTHERWISE SPECIFIED
THREAD SERIESNPT OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCY1/2 INCH MALE X FEMALE ORIFICE, ADAPTER IN
MATERIALSTEEL COMP 303
ORIFICE DIAMETER0.146 INCHES NOMINAL IN
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES 1
803-7526094ITEM201Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is H-146-SS?
H-146-SS is a RESTRICTOR,FLUID FLOW.
What parts can replace H-146-SS?
There is 1 known substitute for H-146-SS: 803-7526094ITEM201. Substitute compatibility should be verified for your specific system.
What is the NSN for H-146-SS?
H-146-SS is cataloged in the U.S. Government catalog under NSN 4730-01-733-4252. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.